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3 years ago

Having some trouble with this...pls help (in fraction form)

Mathematics

1 answer:

Yuri [45]3 years ago

4 0

Answer:

$\frac{17}{6}$ or $2\frac{5}{6}$

Step-by-step explanation:

1.Find the Least Common Denominator (LCD)

LCD = 6

2.Make the denominators the same as the LCD.

$2+\frac{1*3}{2*3} + \frac{1*2}{3*2}$

3.Simplify. Denominators are now the same

$2+\frac{3}{6} + \frac{2}{6}$

4. Join the denominators

$2+\frac{3+2}{6}$

5.Simplify

$2\frac{5}{6}$ = $\frac{17}{6}$

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Sort the property that characterizes either a trapezoid or a kite.

Pie

Trapezoid:

•Can have congruent diagonals. •Has one pair of opposite, parallel sides.

Kites:

•Has congruent adjacent sides.

•Has perpendicular diagonals.

5 0

3 years ago

Which of the following is the product of the rational expression 1/x+2 × x/x-2

pav-90 [236]

Answer:

the answer of your question

$\frac{1}{x + 2} \times \frac{x}{x - 2} = \frac{x}{x ^{2} - 4}$

6 0

3 years ago

Last summer, winky's waterpark kept track of the number of park visitors each day.

Montano1993 [528]

As per the given data 100, 150, 200, 250, 300, 350 the range of the data set is 250.

<h3>What is range?</h3>

It is defined as the difference between the maximum value in the data set to the minimum value in the data set.

We have:

Last summer, Winky's watermark kept track of the number of park visitors each day.

The data given:

100, 150, 200, 250, 300, 350

As we know range is a statistical measure which is the difference between maximum and minimum value.

Range = maximum value in data set—minimum value in data set

Range = 350 - 100 = 250

Thus, as per the given data 100, 150, 200, 250, 300, 350 the range of the data set is 250.

Learn more about the range here:

brainly.com/question/17553524

#SPJ1

5 0

1 year ago

In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one study

astra-53 [7]

Answer:

C. z = 2.05

Step-by-step explanation:

We have to calculate the test statistic for a test for the diference between proportions.

The sample 1 (year 1995), of size n1=4276 has a proportion of p1=0.384.

$p_1=X_1/n_1=1642/4276=0.384$

The sample 2 (year 2010), of size n2=3908 has a proportion of p2=0.3621.

$p_2=X_2/n_2=1415/3908=0.3621$

The difference between proportions is (p1-p2)=0.0219.

$p_d=p_1-p_2=0.384-0.3621=0.0219$

The pooled proportion, needed to calculate the standard error, is:

$p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{1642+1415}{4276+3908}=\dfrac{3057}{8184}=0.3735$

The estimated standard error of the difference between means is computed using the formula:

$s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.3735*0.6265}{4276}+\dfrac{0.3735*0.6265}{3908}}\\\\\\s_{p1-p2}=\sqrt{0.00005+0.00006}=\sqrt{0.00011}=0.0107$

Then, we can calculate the z-statistic as:

$z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{0.0219-0}{0.0107}=\dfrac{0.0219}{0.0107}=2.05$

z=2.05

4 0

3 years ago

PLZ HELP ASAP MARK BRAINLIEST VIEW PICTURE!!

krok68 [10]

Answer: The second option

Step-by-step explanation: 14mph times 5 equal 70. 5 hours after 6 am is 11 am. 70 divided by 20 is 3.5. 3.5 hours after 6 am is 9:30. Hence 9:30 to 11

7 0

2 years ago